After adding a couple of entries, I tried a search for names, and it didn’t seem to work. Maybe the Search feature only works for publicly indexed blogs, which would be a pity. The idea of a family blog would be that it is for members of the family to look at and comment on, rather for publicising to the world at large, but if that means one can’t index it for surnames, it would be tedious to plough all the way through looking.